1.Ụlọ ọrụ anyị 2. ihe QC 2. ihe QC 3. Ịcha 3. Ịcha 3. Ịcha 4. Mbụ polishing 5. Ịgbakọta 6. gluu 7. QC 8. Ntu ntu 9. na-egbu maramara 10. QC 11. Mkpịsị aka na mkpọchi 12. agba 12. Agba anwụ 13. Ihe osise 13. ihe osise laser 14. QC 14. QC 15. Njikere mbukota 16. Nkwakọ ngwaahịa 16.Nkwakọ ngwaahịa 17. Ajuju nke ọma 18. akpa akpa